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Intake Manifold Upgrades & Components (DISA, Vacuum, CCV

BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc) for BMW 8 Series E31 (1991-1997)

The intake manifold takes incoming air from the intake and distributes it to each cylinder. Over the years the manifolds have gotten more sophisticated and complex. Most of the additional work that it does is emissions-related - recirculating vapors back into the engine to be re-used. But there are also performance innovations such as BMW's DISA variable intake runners. All of the modern innovations have a part behind it and here you will find replacement components.

In some BMW models there are performance improvements with intake manifolds. These intake manifold upgrades use mostly BMW parts and are a direct replacement for your stock manifold. We offer manifolds and kits to make the conversion work easier.

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Intake Manifold Regulator Valve - Rein | BMW E31 E38 M73 5.4L Engine ...

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T#:38229095

Part#: 11157501564

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Sale - Save 5% $ 35.99

This product was last offered at the strikethrough price on
08-31-2026

$ 34.19 USD

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Sale - Save 5%

$ 35.99

This product was last offered at the strikethrough price on
08-31-2026

$ 34.19 USD

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Intake Manifold Regulator Valve - Rein | BMW E31 E38 M73 5.4L Engine is engineered to maintain optimal airflow and engine performance by regulating intake manifold pressure. A failing regulator valve can lead to poor throttle response, rough idling, and decreased fuel efficiency. This high-quality replacement ensures proper engine function and is designed as a direct-fit solution for BMW E31 and E38 models equipped with the M73 5.4L engine. Manufactured to meet or exceed OEM standards, this valve restores efficient air intake operation, improving overall engine performance.

Regulates intake manifold pressure for optimal airflow and performance
Direct-fit replacement for BMW E31 and E38 M73 5.4L engines
Helps improve throttle response and fuel efficiency
Reduces rough idling and engine hesitation
Manufactured to meet or exceed OEM quality standards
Ensures long-lasting durability and reliability

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Rein Intake Manifold Breather Valve | BMW E31 E38 M73 5.4L engine ...

2X Entries Into Our F80 M3 Sweepstakes

T#:38195423

Part#: 11157501565

Ships in 4 Business Days

Sale - Save 7% $ 29.99

This product was last offered at the strikethrough price on
08-31-2026

$ 27.75 USD

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Qty

Sale - Save 7%

$ 29.99

This product was last offered at the strikethrough price on
08-31-2026

$ 27.75 USD

Add to Wish List

Rein Intake Manifold Breather Valve | BMW E31 E38 M73 5.4L engine is a crucial component for maintaining proper crankcase ventilation and engine efficiency. Designed for BMW E31 and E38 models equipped with the M73 5.4L engine, this breather valve helps regulate internal pressure within the intake manifold, preventing excessive oil consumption and ensuring smooth engine operation. Over time, a failing breather valve can cause vacuum leaks, rough idling, and reduced performance. This high-quality replacement restores proper airflow and reliability.